LT3798EMSE Просмотр технического описания (PDF) - Linear Technology
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LT3798EMSE Datasheet PDF : 20 Pages
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LT3798
TYPICAL APPLICATIONS
Universal Input 24W PFC Bus Converter
L2
800µH
L1
33mH
BR1
90V
TO 265V
AC
C1
0.068µF
C2
0.1µF
R7
100k
R3
499k
R8
100k
R4
499k D3
R17
D2 20Ω
C4
C5 4.7pF
10µF
R13
2k
R5
1M
R6
95.3k
R11
R9
100k 40.2k
BR1: DIODES, INC. HD06
C8: VISHAY 440LD22-R
D1: CENTRAL SEMICONDUCTOR CMR1U-06M
D2, D3: DIODES INC. BAV20W
D4: CENTRAL SEMICONDUCTOR CMR1U-02M
M1: FAIRCHILD FDPF15N65
T1: COILCRAFT JA4429-AL
R12
221k
R10
16.5k
Z1: FAIRCHILD SMBJ170A
Z2: CENTRAL SEMICONDUCTOR CMZ5937B
VIN
VIN_SENSE
EN/UVLO
DCM
FB
LT3798
VREF
CTRL3
CTRL2
CTRL1
OVP
VC
COMP+
GATE
SENSE
INTVCC
GND
COMP–
C3 C7, 0.1µF
2.2µF
R14
90.9k
R15
C6
4.99k
22pF
R16
20Ω
C9
4.7µF
4:1:1
D4
24V
Z1
1A
+ C10
560µF
D1
×2
M1
Z2
RS
0.05Ω C8
2.2nF
“Y1 CAP”
3798 TA02
L2
27mH
90V
TO 265V
AC
L1
1mH
BR1
C1
0.1µF
BR1: DIODES, INC. HD06
C8: VISHAY 440LD22-R
C11: MURATA GRM32ER7YA106KA12L
D1: CENTRAL SEMICONDUCTOR CMR1U-06M
D2, D3: DIODES INC. BAV20W
D4: DIODES INC. SBR20A200CTB
M1: INFINEON IPB60R165CP
T1: WÜRTH ELEKTRONIK 750811248
Z1: FAIRCHILD SMBJ170A
Z2: CENTRAL SEMICONDUCTOR CMZ5937B
Universal Input 48W PFC Application
R3
C2
499k
0.22µF R4
499k
R5
2.4M
R6
301k
R11
R9
100k 40.2k
R12
R10
221k 31.6k
R7
R17
100k
D2 47Ω
R8
C4
100k
C5
22pF
10µF
D3
R13
33k
VIN
VIN_SENSE
EN/UVLO
LT3798
DCM
FB
C6
22pF
R14
100k
R15
5.49k
VREF
CTRL3
CTRL2
CTRL1
OVP
GATE
SENSE
INTVCC
GND
VC
COMP+ COMP–
C3
C7, 0.1µF
1µF
R16
20Ω
C9
4.7µF
4:1:1
Z1
D1
M1
D4
24V
+C10
2A
1000µF
×2
C11
10µF
×2
Z2
RS
0.03Ω C8
2.2nF
“Y1 CAP”
3798 TA03
3798fa
17
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